var offsetxpoint = 15;
var offsetypoint = 10;
var ie = document.all ? true : false;
var ns6 = document.getElementById && !document.all;
var enabletip = false;
var tipobj = null;
if (ie || ns6)
var tipobj = document.all ? document.all["dhtmltooltip"] : document.getElementById ? document.getElementById("dhtmltooltip") : "";

function ietruebody()
{
   return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function ddrivetip(thetext, thecolor, thewidth)
{
   if (ns6||ie)
   {
      if (typeof thewidth != "undefined") 
         tipobj.style.width = thewidth + "px";
      if (typeof thecolor != "undefined" && thecolor != "")
         tipobj.style.backgroundColor=thecolor;
      tipobj.innerHTML = thetext;
      enabletip = true;
      return false;
   }
}

function positiontip(e)
{
   if (enabletip)
   {
      var curX = (ns6) ? e.pageX : event.clientX + ietruebody().scrollLeft;
      var curY = (ns6)? e.pageY : event.clientY + ietruebody().scrollTop;
      //Find out how close the mouse is to the corner of the window
      var rightedge = ie && !window.opera ? ietruebody().clientWidth - event.clientX-offsetxpoint : window.innerWidth - e.clientX - offsetxpoint - 20;
      var bottomedge = ie && !window.opera ? ietruebody().clientHeight - event.clientY-offsetypoint : window.innerHeight - e.clientY - offsetypoint - 20;

      var leftedge = (offsetxpoint<0) ? offsetxpoint*(-1) : -1000

      //if the horizontal distance isn't enough to accomodate the width of the context menu
      if (rightedge < tipobj.offsetWidth)
         tipobj.style.left=ie? ietruebody().scrollLeft+event.clientX-tipobj.offsetWidth+"px" : window.pageXOffset+e.clientX-tipobj.offsetWidth+"px";
      else if (curX < leftedge)
         tipobj.style.left = "5px";
      else
         tipobj.style.left=curX+offsetxpoint+"px";

      //same concept with the vertical position
      if (bottomedge<tipobj.offsetHeight)
         tipobj.style.top=ie? ietruebody().scrollTop+event.clientY-tipobj.offsetHeight-offsetypoint+"px" : window.pageYOffset+e.clientY-tipobj.offsetHeight-offsetypoint+"px";
      else
         tipobj.style.top=curY+offsetypoint+"px";
      tipobj.style.visibility="visible";
   }
}

function hideddrivetip()
{
   if (ns6||ie)
   {
      enabletip=false;
      tipobj.style.visibility="hidden";
      tipobj.style.left="-1000px";
      tipobj.style.backgroundColor='';
      tipobj.style.width='';
   }
}

document.onmousemove=positiontip;